Bunsen burner for incandescent gas-lamps.



M. JACOBS. BUNSEN BURNER FOR INOANDBSGENT GAS LAMPS;

APPLICATION FILED JAN. 7, 1908.

928,453, Patented July 20, 1909.

a v ,x 1-l. I i v l wawto c Jl/UFEL .JAUOBS 'a'wwmtouww UNITED s'rArnsrATENT oFFIcE.

Mitiiiiil. JACOBS. OF NEW YORK, N..Y., ASSIGNOR TO MANHATTAN SCREW d: STAMPING WORKS. OF NEW YORK, X. Y.. A CORPORATION OF NEW YORK.

BUIJSEN BURNER FOR INCANDESCENT GAS-LAMPS.

No. assess.

' Specification of Letters Patent.

Patented July 20, 1909.

Application filed January 7, 1908. Serial No. 409,608.

To all whom it maq concern:

Burners for Incandescent Gas-Lamps, of

which the followingis a specification.

, My invention relates to Bunsen burners for incandescent gas lamps and. has forits object to improve and simplify the construc tion thereof.

Other objects will appear from the annexed description andthe features of novcity will be pointed out in the appended claim. I

Reference is to be had-t0. the accompanying drawings in which- Figure 1 is an elevation partly in section of a burner constructed according to my invention. 2 is a section thereof on the line 22 of Fig. 1. Fig. 3 is a horizontal section on line 33 of Fig. 1. Fig. 4 is a detail view of a part of the needle valve. Fig. 5 is' a perspective view of another part therer of, "and Fig. 6 is a perspective view of the mixing tube.

A is the mixing tube which is connected with the customary burner in the usual way and is provided with air inlets A.- The mixing tube A is made integral with a screwthreaded collar- B and with arms C which are bent so that the'space between the vertical portions of said arms is greater than the diameter of the mixing tube, as clearly shown in Figs. 1, 3 and 6.

D is a regulating shutter capable of rotation on the mixing tube A and provided with openings 1) arranged to register with the air-inlets A of the mixing tube A for the 'purpose of regulating the amount of air which enters the said mixing tube. This shutter D is maintained in position by frictional contact with the tube A and the lower edge of said. shutter extends below the lower end A of the mixing tube, when the shutter is in operative position shown in Fig. 1.

E is a protecting hood secured to the shutter over the openings D for the purpose of preventing the mixture in the tube A from becoming prematurely ignited by the gas flame.

A carrier F having a milled operating head F is arranged to screw into the collar B and has an internally srrew threaded. portion F adapted for connection with the ordinary gas fixture. The said carrier F is further provided with a reduced screw threaded portion and a smooth neck portion G, which is smaller in diameter than the screwthreaded portion G; A packing ring H made of leather or similar material fits over this neck G and is externally screw-threaded to correspond to the screw-threaded portion G. This ring-H is held in position on the neck G by the flange G which also extends over the one end-of the member F and is provided with apertures I and a centrally arranged needle valve I. The Washer is adjusted on the neck G andv the flange G is thereafter formed so as to hold the washerin place.

J 's an adjustable cap or regulator which is arranged to screw over the ring H and the screw threaded portion G of the member F,

This capis'pro'vided in its top wall with a' central opening J, which is adapted to cooperate with the needle-valve I to regulate the flow of gas. For the purpose of permitting this ca -to be easily manipulated, it is provided wlth a milled flange which is of arger diameter than the milled head F of the carrier F. This milled flange J 2 extends between the vertical portions of the connecting arms C and as the cap J adjusted up and down on the member F moves between the horizontal portions C of said arms C. It is to be understood that the diameter of this milled flanged is slightly less than the dis.- tance between the vertical portions of the arms C so that said flange can be easily turned to operate the regulating ca 3. As shown in Fig. 3, this flange extends t rough the s )aces between the arm C and consider ably beyond the periphery of the'largest portion oi the Bunsen tube. This milled flange is thus easily accessible and readily operated to raise or lower thecap J. The lower end of the mixing tube is provided'with two diaing the sh utteu D the cap is released so that it can be removed sidewise. It will be understoodthat in thenorrnal operation of the device, the cap will always'fit into 'the'mixing tube (even With the needle valve closed) so that no air can enter between the capand the and escapes through'the openin s1 and central opening J to the mixing t'u )e and from there to the burner, the amount of gas being in the opening J.

' It will be seen that the entire Bunsentube, with the collar B and connecting arms C is regulated bv the position of the needle valve made in one piece thus greatly simplifying v the construction. Further-the carrier F and the needle valve can be easily removed from the burner for any pur'pose.- In my device the needle valve is normally stationary and the-amount otgas is regulated by screwing the cap J so that the said valve will extend tight joint'is'secure I more or less into'said openingjby the screw threaded packing fing interposed and the member Fa gas between the said cap et thi sv point,- I claim as my invention:

inlets and provided. with a lateral-match at itslower-end; means forsupp'ly'ing gas to said tube, an adjustable: gas regulator fitted into saidtube, the upper portion of said regulator having an outline 'corres ending .to' thet' of said notch,- so thatwhen o'vt ered sufficiently the'-.reg'ulator may be removed. Isidewise through said notch, anda'vertically movable air shutter which in its'normal lowered posi- In agasIbu rner,| amixing .tube-hav-ingjair tion obstructs the removal of the gas T6211;

later through said notch.

, In testimony whereofll have hereunto set my hand in the presence of tyre subscribing Witnesses, this-21st day of. November 1907.

' MICHEL JACOBS; Witnesses I E515; .ULYNE'IIZ, H. H YM'AN. 

